What is a UL Class 350 rating?

UL Class 350 is the standard fire resistance classification for paper document storage. A UL Class 350-1 Hour cabinet maintains its interior below 350°F for a minimum of 60 minutes when subjected to an external fire temperature that reaches 1,700°F. Paper chars at 451°F, so the 350°F threshold provides a safety margin for document survival. This is the most common rating for commercial document storage. At OfficeFurniture2go.com, all our standard fireproof cabinets carry at minimum a Class 350-1 Hour rating — call 1-800-460-0858.